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Australian Water Dragon
This is an The Eastern Water Dragon Intellagama lesueurii lesueurii, is a subspecies that occurs along the east coast of Australia from Cooktown in the north down to the New South Wales south coast (approximately at Kangaroo Valley) where it is replaced with the Gippsland Water Dragon Intellagama lesueurii howittii (there are a lot of young ones around Sandy Camp Rd Wetlands at the moment)
Scientific Name: Intellegama lesueurii
Identification: The genus Physignathus was described by George Cuvier (1769-1832) in 1829 based on the type specimen of the genus; the Green Water Dragon, Physignathus cocincinus of south-east Asia. The name Physignathus translates to "puff-cheek" and refers to the bulging appearance of the throat and lower jaw. Physignathus comprises two recognised species; Physignathus lesueurii and Physignathus concincinus. The specific name lesueurii honours the French naturalist Charles-Alexandre Lesueur (1778-1846) who collected this species on the Baudin expedition of 1800. There are two recognised subspecies of Water Dragon; the Eastern Water Dragon, Physignathus lesueurii lesueurii and the Gippsland Water Dragon, Physignathus lesueurii howittii. A recent taxonomic review concluded that the Australian species of Physignathus shows enough differing characteristics to classify it in its own genus, since Physignathus was first assigned to P. cocincinus, a new genus hand to be created for the Australian Water Dragons. In 2012 the species was officially renamed Itellagama lesueurii.
The Water Dragon can be identified by a distinctively deep angular head and nuchal crest of spinose scales that joins the vertebral crest extending down the length of its body to the tail. Enlarged spinose scales are also present across the lateral surface, unevenly distributed amongst regular keeled scales. The jowls are large and ear is exposed and of almost equal size of the eye. The dorsal ridge and tail are laterally compressed and the limbs are strong and robust with particularly long toes on the hind legs. The tail is capable of regeneration when lost, furthermore, regenerated tails can also grow back when severed.
Colouration differs between the subspecies; the Eastern Water Dragon, Itellagama lesueurii lesueurii, has a grey to brownish-grey colour above with patterns of black stripes along the dorsal ridge as well as down the tail. There is also a dark stripe horizontally from the eye back over the tympanum and extending down the neck. The limbs are mostly black with spots and stripes of grey and the tail is patterned with grey and black stripes. The ventral surface is yellowish-brown, with the chest and upper belly becoming bright red in mature males.
The Gippsland Water Dragon, Itellagama lesueurii howittii, is identical in morphology apart from slightly smaller spinose scales but differs in colouration and patterning. Dorsally the body is olive-green to brown in colour with transverse black stripes. The dark stripe from the eye to ear is absent. Mature males have dark blue-green chests and streaks of yellow and blue around the neck and throat.
Size range: Total length of 80 to 90cm
Distribution: Water Dragons are found in eastern Australia as well as southern New Guinea. The Eastern subspecies, Itellagama lesueurii lesueurii, occurs along the east coast of Australia from Cooktown in the north down to the New South Wales south coast (approximately at Kangaroo Valley) where it is replaced with the Gippsland subspecies Itellagama lesueurii howittii, which is distributed as far south and into the Gippsland region of eastern Victoria. There are also at least one anthropologically introduced feral population found in the Mount Lofty Ranges near Adelaide in South Australia.
Habitat: The habitats available to this species differ greatly over its distribution, from tropical rainforest in the north to alpine streams in the south. Flowing water with ample tree cover and basking sites appear to be the key to habitat preference for this species. Water dragons will be found in built-up urban areas provided that the above conditions can be found and water quality is fair.
Feeding and Diet: Water Dragons are completely insectivorous as juveniles, however as they grow they become more omnivorous with vegetable matter gradually making up to almost half of the diet. In the wild Water Dragons have been observed ground feeding on insects such as ants as well as foraging amongst the branches of trees for arboreal invertebrates like cicadas. They may also consume molluscs and crustaceans such as yabbies, and individuals have been reported foraging for algae and crabs in intertidal zones of the Sydney region. Juvenile Water Dragons have also been observed feeding on mosquitoes which they will jump in the air to catch. Types of vegetation reportedly consumed include figs, lilly-pilly fruits, and other fruits and flowers. Water Dragons are believed to forage underwater, however this is based on one observation of diving Water Dragons returning to the surface and moving their jaws.
Other behaviours and adaptations: The Water Dragon is more often heard than seen as it dives into the water when disturbed. It can remain submerged for around one hour. This species has a much lower preferred body temperature than other large dragons and can remain in the water or in shade on hot days. They are often seen on overcast days or in the morning basking in the available heat.
Water Dragons have quite contrasting activity patterns that are dependent on the season and average daily temperature within its range. During spring and summer, Water Dragons of all ages and sizes can be seen in the various riparian environments they inhabit - basking on riverbanks and rocks, lounging in trees, swimming, as well as foraging for food on land. They can sometimes be hard to observe, and even animals accustomed to human attention will be quick to escape if approached too closely, by either dropping from rock ledges and branches into the water or running bipedally to the water or thick cover. Young Water Dragons prefer to be on the ground and appear to be more wary than the larger adults. Juveniles of I. l. lesueurii have been observed staying completely still when discovered in a grassed section metres from the water, relying heavily on their dull grey camouflage to blend in with the grass and fallen leaves.
Life cycle: Growth rate is fastest in the first year with hatchings from one mark-recapture project growing 2.25mm or 1.25g per month. One individual measured in its first season in March 1990 was 78mm from snout to vent and weighed 17g. The following year in January this same individual had a snout to vent length of 101mm and was 34g.
Mating and reproduction
The timing of breeding is determined by the onset of warmer weather in spring which occurs sooner in populations inhabiting northern Queensland and later in populations living in Gippsland. In the Sydney region, the breeding season begins in September, when courtship and mating begins, and concludes in January when the last clutches of eggs are laid.
Males are thought to be sexually mature at a snout-vent length of about 210 mm and a mass of 400 g. In the wild this occurs at approximately 5 years of age; in captivity however this can occur as early as 2 years. A single captive female was recorded reproducing from the age of 4 until it was 27 years of age. It is unclear how long males can remain reproductive.
Males of similar size will fight each other when confronted. A male will first attempt to deter his opponent through intimidation, e.g. by walking tall and puffing out the throat with the mouth open wide (see Image 18), and will try to appear as large as possible. If this does not deter the opponent, then ritual combat will result. Male combat includes both animals siding up to each other on the ground so that each animal has its head next to its opponentâs hip area. Both animals will circle each other while taking short bites at each others hip and neck regions. Then they may stop still before erupting into action and repeating this pattern over several more times. Before the end of the battle both opponents will have wounds from biting and scratching on their hips and necks. Fighting between wild males has been observed lasting for ten minutes.
Females can reproduce twice a season in captivity; however this has not been reported in mark-recapture studies of wild populations.
Females begin digging test holes in sandy soil from a week to three days prior to laying. Water Dragon clutch size ranges from 6 to 18. Mean mass of individual eggs varies from about 4.0 to 5.1g.
Predators, Parasites and Diseases
Small Water Dragons have been observed being taken by Brown Tree Snakes Boiga irregularis which hunt for them in the tree branches as they sleep. Other species of snakes known to prey on juvenile Water Dragons include Death Adders Acanthophis antarcticus, Copperheads Austrelaps superbus and Red-bellied Black Snakes Pseudechis porphyriacus. Hatchlings and young dragons are also known to be cannibalised by adult Water Dragons in some wild populations.
(Source: Australian Museum)
© Chris Burns 2017
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Found some nuts and bolts in my spare items can to lock into place. The drilled some 3/16" holes into place for ventilation on the bottom pan
Name: Yellow-vented bulbul
Scientific: Pycnonotus goiavier
Malay: Merbah Kapur
Family: Pycnonotidae
Gear: SONY a9 + SEL200600G + SEL14TC.
#FullFrameLife #MySONYLife #sony #sonymalaysia #a9 #SEL200600G #SEL14TC #alpha #NurIsmailPhotography #madebyluminar #skylum #skylummalaysia #luminar #topazlabs #urbanbirding #putrajaya
Copyright © 2020 Nur Ismail Photography. All rights reserved. Do not use or reproduce these images on websites, blogs or publications without expressed written permission from the photographer.
For any enquiries, please visit my website: www.nurismailphotography.com or email at nurismailphotography@gmail.com.
A white-vented Myna (Acridotheres javanicus) defending his perch. Plaeng Yao, Chachoengsao, Thailand
Metering the bird here was rather tricky, because if i used the eye as reference, the bokeh was over exposed, so i used it's plumage and got a decent result.
A little caught up with with end semester exams now, waiting for them to end asap.. :)
The Red-vented Bulbul (Pycnonotus cafer) is a member of the bulbul family of passerine birds. It is resident breeder in tropical southern Asia from India and Sri Lanka east to Burma and southwestern China. It has been introduced and has established itself in the wild in many Pacific islands including Fiji, Samoa, Tonga, and Hawaii. It has also established itself in parts of Dubai, the United Arab Emirates and New Zealand. It is included among the world's worst invasive alien species.
In 19th Century India these birds were frequently kept as cage pets and for fighting especially in the Carnatic region. They would be held on the finger with a thread attached and when they fought they would seize the red feathers of the opponents.
Aerial view of the tanker ‘Eastgate’ on sea trials, November 1957 (TWAM ref. DS.JLT/4/PH/1/691/3).
This set celebrates the achievements of the famous Sunderland shipbuilding firm Joseph L. Thompson & Sons. The company’s origins date back to 1846 when the firm was known as Robert Thompson & Sons. Robert Thompson senior died in 1860, leaving his second son Joseph Lowes Thompson in control. In 1870 the shipyard completed its last wooden vessel and was then adapted for iron shipbuilding.
By 1880 the firm had expanded its operations over much of North Sands and in 1884 completed the construction of Manor Quay, which served as fitting out and repair facilities. For many years in the late nineteenth century the yard was the most productive in Sunderland and in 1894 had the fourth largest output of any shipyard in the world.
The Depression affected the firm severely in the early 1930s and no vessels were launched from 1931 to 1934. However, during those years the company developed a hull design giving greater efficiency and economy in service. During the Second World War the prototype developed by Joseph L. Thompson & Sons proved so popular that it was used by the US Government as the basis of over 2,700 Liberty ships built at American shipyards between 1942 and 1945.
After the War the North Sands shipyard went on to build many fine cargo ships, oil tankers and bulk carriers. Sadly the shipyard closed in 1979, although it briefly reopened in 1986 to construct the crane barge ITM Challenger.
(Copyright) We're happy for you to share these digital images within the spirit of The Commons. Please cite 'Tyne & Wear Archives & Museums' when reusing. Certain restrictions on high quality reproductions and commercial use of the original physical version apply though; if you're unsure please email archives@twmuseums.org.uk
Camera: Lomography Belair X 6-12, 58mm. Film: Revolog Rasp (35mm), home-developed with the Rollei Digibase C41 kit.
VENT: www.vent.at
Kunstweg B-ART-EB'NE: www.vent.at/kunstweg
FOLDER pdf: www.vent.at/urlaub/files/ORTE/SO/vent_kunstweg_folder,met...
UNTERKUNFT: www.alpinhotel-post.com/
UNTERKUNFT: www.hotel-vent.at/
VENT (Wiki): de.wikipedia.org/wiki/Vent_(Gemeinde_S%C3%B6lden)
On the outskirts of centertown, there are all of these massive structures multi-storey structures spewing hot air. From what I can guess, they are the air exchange units for the maze of underground malls and restaurants and offices that run an interconnect loop through the entire downtown core. And each and every one of them is designed differently. They just might be the most utilitarian structures I have ever seen. So very Eighties. So very pragmatic.
Do not use any of my images on websites, blogs or other media without my explicit written permission.
All rights reserved - Copyright © fotomie2009 - Nora Caracci
-Please tag these photos so information can be recorded.---Note: This material may be protected by Copyright Law (Title 17 U.S.C.)--Repository: San Diego Air and Space Museum
It's not unusual for a mine to have vents for fresh air. Usually they are located somewhat further than 20 feet from the entrance though.
It was raining when I was here. I was standing here waiting for the rain to stop and wondering why I kept getting yet. It was hard to see this from the bottom.
The large curved vent is based on the design of my previous attempt at this locomotive. All the vent tiles are clipped in place, to give a see through look. The IR receiver is also placed behind this vent, and I have no problems with the signal.
The Lincoln Street Vent in Highgate, Western Australia. Apparently it was built in 1935 and sealed in 1941 - possibly the Metropolitan Water Supply Sewerage and Drainage Department really wanted people to know they'd done the job.
Le moulin de Largny sur Automne a été construit avant 1500, détruit pendant les guerres de religion de la Renaissance puis reconstruit après 1645. Sur le moulin à vent, est sculptée une salamandre. Dans ses mémoires, Alexandre Dumas parle de ce moulin.
BOULOGNE BILLANCOURT
TEL 01 46 10 44 77
6-10 RUE DES QUATRES CHEMINEES 92100 BOULOGNECHEMINEES 92100 BOULOGNE
O que acontece se você misturar: algodão, arame, massa, fotografia, direção de arte, vento e uma pitada de imaginação?
Anúncio para Braselco, parceria com a agência Estalo.
Foto: Caio Ferreira
Ilustração: Assis Filho e Thyago.
Nex-7 | Carl Zeiss Sonnar T* 1.8/24 E-mount / f5
La Mélodie du Vent.
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